Grade 80 Lifting Chain (Load Chain)Grade 80 Lifting Chain (load chain) is the high quality chain product used for lifting chain applications. It uses superior quality alloy materials with Germany technology production line. It is a kind of lifting chain (load chain) with high tensile strength.G80 lifting chain (load chain) is strictly produced according to the standards ISO3077, EN818, AS2321, assuring 4 times safety coefficient and 2.5 times tested loading capacity. G80 chain can be polished, black-coated, paint-dipped, electroplated processes to adapt heavy humidity, acidic or alkaline bad conditions.
Product: Grade 80 Lifting Chain
Specifications: The published tables list nominal chain diameters from 4 mm to 42 mm. Available pitch, width and finish depend on the selected specification.
Working Load Limit: 0.5 to 55.4 tonnes across the published range. Use the WLL shown for the exact chain size and configuration.
Material: Heat-treated alloy steel. The current product information lists 20Mn2 and 20MnV as material options; confirm the material for each order.
Strength Grade: Grade 80, with a stated 4:1 design factor.
Surface Finish: Options listed on the current page include self-colour, black coating, painting and galvanizing. Confirm the finish when ordering.
Certification: TOPONE states that its quality management system is certified to ISO 9001:2015. Request the product-specific certificate and test records applicable to the chain supplied.
Applications: Chain sling assembly and general lifting in construction, equipment installation, manufacturing and industrial maintenance. Use compatible, correctly rated components in the complete lifting assembly.
Factory: TOPONE operates nine automated production lines in a facility with more than 15,000 m² of building area, including over 5,000 m² of production warehouse space. The company states an annual capacity of 500,000 high-strength load chains. Its production setup supports orders across different chain sizes and finishes, while the approved specification and batch records establish the requirements for each supplied product.
G80 Load Chain Specifications(I)
G80 High Test Chain
G80 Chain for Lifting with good wear characteristics ideal of most lifting applications are widely used in CRANE, HOIST, BINGDING, LIFTING SLINGS and INDUSTRY operations.
Available in self-colored, oxide black, shot blast, electro-galvanized, powder coated and hot galvanized finishes.
| Size | Width | Weight | Working Load Limit | Test Load | Breaking Load Min | |
| (mm) | (b1 Min.) | (b2 Max.) | (Kg/M) | (Ton) | (Kn) | (Kn) |
| 6 x 18 | 7.5 | 21 | 0.79 | 1.1 | 27 | 45.2 |
| 7 x 21 | 9 | 24.5 | 1.07 | 1.5 | 37 | 61.6 |
| 8 x 24 | 10 | 28 | 1.38 | 2 | 48 | 80.4 |
| 10 x 30 | 12.5 | 35 | 2.2 | 3.2 | 76 | 125 |
| 11 x 43 | 12.6 | 36.5 | 2.33 | 3.8 | 92 | 154 |
| 12 x 36 | 15 | 42 | 3.1 | 4.6 | 109 | 181 |
| 12.5 x 38 | 15.5 | 42.2 | 3.3 | 4.9 | 117 | 196 |
| 13 x 39 | 16.3 | 46 | 3.8 | 5 | 128 | 214 |
| 14 x 42 | 18 | 49 | 4.13 | 6.3 | 150 | 250 |
| 14 x 50 | 17 | 48 | 4 | 6.3 | 150 | 250 |
| 15 x 46 | 20 | 52 | 5.17 | 7 | 168 | 280 |
| 16 x 48 | 20 | 56 | 5.63 | 8 | 192 | 320 |
| 16 x 49 | 24.5 | 59.5 | 5.71 | 8 | 192 | 320 |
| 16 x 64 | 23.9 | 58.9 | 5.11 | 8 | 192 | 320 |
| 18 x 54 | 23 | 63 | 6.85 | 10 | 246 | 410 |
| 18 x 64 | 21 | 60 | 6.6 | 10 | 246 | 410 |
| 19 x 57 | 23.7 | 63.2 | 7.7 | 11.3 | 270 | 450 |
| 20 x 60 | 25 | 70 | 8.6 | 12.5 | 300 | 500 |
| 22 x 65 | 28 | 74.2 | 10.7 | 15.3 | 366 | 610 |
| 22 x 66 | 28 | 77 | 10.2 | 15.3 | 366 | 610 |
| 22 x 86 | 26 | 74 | 9.5 | 15.3 | 366 | 610 |
| 24 x 72 | 32 | 82 | 12.78 | 18 | 432 | 720 |
| 24 x 86 | 28 | 79 | 11.6 | 18 | 432 | 720 |
| 26 x 78 | 35 | 91 | 14.87 | 21.3 | 510 | 850 |
| 26 x 92 | 30 | 86 | 13.7 | 21.3 | 510 | 850 |
| 30 x 90 | 38 | 105 | 19.6 | 28.3 | 678 | 1130 |
| 30 x 108 | 34 | 98 | 18 | 28.3 | 678 | 1130 |
| 32 x 96 | 40 | 106 | 22.29 | 32.2 | 772 | 1286 |
| 34 x 126 | 38 | 109 | 22.7 | 36.3 | 870 | 1450 |
| 34 x 102 | 46.5 | 121.5 | 25.5 | 36.3 | 870 | 1450 |
| 36 x 108 | 49.5 | 128.5 | 31 | 40.7 | 978 | 1630 |
| 38 x 137 | 42 | 121 | 29 | 45.3 | 1086 | 1810 |
| 38 x 114 | 52 | 136 | 32 | 45.3 | 1086 | 1810 |
| 42 x 126 | 55.5 | 144.5 | 38.6 | 55.4 | 1332 | 2200 |
G80 Load Chain Specifications (II)
| Nominal Diameter | Weld Diameter | Pitch | Width | Weight | Working Load | Proof Load | Breaking Load | Deflection bending | ||||
| d | tolerance | ds max. | t | t max. | t min. | b1 min. | b2 max. | Kg/m | Kg | KN min. | KN min. | min. |
| 4 | ±0.16 | 4.4 | 12 | 12.4 | 11.6 | 5.2 | 14.8 | 0.35 | 500 | 12.6 | 20.1 | 3.2 |
| 5 | ±0.2 | 5.5 | 15 | 15.5 | 14.6 | 6.5 | 18.5 | 0.5 | 800 | 19.6 | 31.4 | 4 |
| 6 | ±0.24 | 6.6 | 18 | 18.5 | 17.5 | 7.8 | 22.2 | 0.8 | 1120 | 28.3 | 45.2 | 4.8 |
| 7 | ±0.28 | 7.7 | 21 | 21.6 | 20.4 | 9.1 | 25.9 | 1.1 | 1500 | 38.5 | 61.6 | 5.6 |
| 8 | ±0.32 | 8.8 | 24 | 24.7 | 23.3 | 10.4 | 29.6 | 1.4 | 2000 | 50.3 | 80.4 | 6.4 |
| 10 | ±0.4 | 11 | 30 | 30.9 | 29.1 | 13 | 37 | 2.2 | 3150 | 78.5 | 126 | 8 |
| 13 | ±0.52 | 14.3 | 39 | 40.2 | 37.8 | 16.9 | 48.1 | 3.8 | 5300 | 133 | 212 | 10 |
| 16 | ±0.64 | 17.6 | 48 | 49.4 | 46.6 | 20.8 | 59.2 | 5.7 | 8000 | 201 | 322 | 13 |
| 18 | ±0.9 | 19.8 | 54 | 55.6 | 52.4 | 23.4 | 66.6 | 7.3 | 10000 | 254 | 407 | 14 |
| 19 | ±1 | 20.9 | 57 | 58.7 | 55.3 | 24.7 | 70.3 | 8.1 | 11200 | 284 | 454 | 15 |
| 20 | ±1 | 22 | 60 | 61.8 | 58.2 | 26 | 74 | 9 | 12500 | 314 | 503 | 16 |
| 22 | ±1.1 | 24.2 | 66 | 68 | 64 | 28.6 | 81.4 | 10.9 | 15000 | 380 | 608 | 18 |
| 23 | ±1.2 | 25.3 | 69 | 71.1 | 66.9 | 29.9 | 85.1 | 12 | 16000 | 415 | 665 | 18 |
| 25 | ±1.3 | 27.5 | 75 | 77.3 | 72.8 | 32.5 | 92.5 | 14.1 | 20000 | 491 | 785 | 20 |
| 26 | ±1.3 | 28.6 | 78 | 80.3 | 75.7 | 33.8 | 96.2 | 15.2 | 21200 | 531 | 849 | 21 |
Name: Grade 80 Lifting Chain
MOQ: 100 metres
Package: Carton + Steel Pallet
Manufacturing Standards: EN 818-1 provides general acceptance requirements for electrically welded short-link lifting chain, while EN 818-2 covers Grade 8 medium-tolerance chain for chain slings and general lifting. ISO 1834 and ISO 3076 provide corresponding general acceptance and Grade 8 medium-tolerance chain requirements. Specify the applicable standard and edition on the purchase order, and verify the supplied batch against that specification.
Testing Standards: Verify chain diameter, pitch, width, weld dimensions, surface condition and markings against the approved specification. Check proof load, minimum breaking load and required mechanical properties using the methods and acceptance criteria of the applicable EN 818 or ISO standard. Record the results with the batch identification and provide the relevant test documentation for the supplied chain.
Application Standards: EN 818-4 applies when suitable Grade 8 chain and components are assembled into a Grade 8 chain sling. ISO 4778 applies to Grade 8 chain slings of welded construction where that design is specified. Select the complete sling by its marked WLL, configuration and lifting angles. For a chain hoist load chain, specify a separately verified fine-tolerance product designed for the hoist.
Maintenance Standards: ISO 3056 provides guidance for the selection, use, inspection and maintenance of non-calibrated round steel lifting chain and chain slings. Inspect the chain before use and arrange periodic examinations under the applicable site rules. Remove it from service if inspection finds cracks, deformation, severe corrosion, excessive wear, damaged welds or other rejection conditions in the governing instructions. Keep inspection records and follow the manufacturer's limits for use and repair.
